ĐÁNH GIÁ HIỆU LỰC CỦA MỘT SỐ LOẠI THUỐC SINH HỌC TRỪ SÂU CUỐN LÁ NHỎ HẠI LÚA (CNAPHALOCRICIS MEDINALIS GUENEE) TRÊN GIỐNG LÚA TBR225 TẠI TỈNH THANH HÓA

Abstract

The two biological pesticides, Danobull 50WG and Bonongduyen 4.0EC, were tested for their efficacy against the rice leaf folder (Cnaphalocricis medinalis Guenee). The trial results conducted in rice fields demonstrated that both pesticides were effective in preventing damage by the rice leaf folder. Specifically, Danobull 50WG, which contains the active ingredient Emamectin benzoate (50g/kg) comprising Avermectin B1a (90%) and Avermectin B1b (10%), exhibited the highest efficiency against the rice leaf folder (60.19%) three days after spraying.